CN215491130U

CN215491130U - Steelmaking waste gas waste heat recovery utilizes device

Info

Publication number: CN215491130U
Application number: CN202121780627.5U
Authority: CN
Inventors: 廖万萍
Original assignee: Xinjiang Tianshan Iron And Steel Bazhou Co ltd
Current assignee: Xinjiang Tianshan Iron And Steel Bazhou Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-11
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a steelmaking waste gas waste heat recycling device, which is characterized in that: comprises a bottom plate (3), a water tank (1) and a drying box (2) which are fixedly arranged on the bottom plate (3); a heat exchange mechanism is arranged in the water tank (2), the heat exchange mechanism comprises an exhaust gas pipe (102) penetrating through the water tank (1) and a stirring piece arranged in the water tank (1), a cavity (203) is arranged in a box body of the drying box (2), a suspension mechanism is arranged in the drying box (2), and the cavity (203) is communicated with the exhaust gas pipe (102) through an air pipe (210); the utility model provides convenience for staff life by utilizing the high-temperature steelmaking waste gas on one hand, and consumes a part of heat of the steelmaking waste gas on the other hand.

Description

Steelmaking waste gas waste heat recovery utilizes device

Technical Field

The utility model relates to a waste heat recycling device, in particular to a steelmaking waste gas waste heat recycling device.

Background

Steelmaking refers to controlling the carbon content (generally less than 2%), eliminating P, S, O, N and other harmful elements, retaining or increasing Si, Mn, Ni, Cr and other beneficial elements and adjusting the proportion among the elements to obtain the best performance.

The pig iron for steel making is put into a steel making furnace to be smelted according to a certain process, and the steel is obtained. Steel products include ingots, billets, and direct castings of various steels, and the steel generally referred to is a steel rolled into various steels. Steel belongs to the ferrous metal but steel is not completely equivalent to ferrous metal.

A large amount of waste gas can be produced in the steelmaking process, the high-temperature waste gas after treatment can not be directly discharged, the high-temperature waste gas needs to be cooled to a certain index to be discharged, but the waste heat in the waste gas is not small, and a large amount of heat can be wasted if the waste gas is not directly cooled and discharged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a steelmaking waste gas waste heat recycling device which utilizes steelmaking waste gas to heat and dry clothes.

In order to solve the problems, the utility model is realized by the following scheme:

a steelmaking waste gas waste heat recycling device comprises a bottom plate, a water tank and a drying box, wherein the water tank and the drying box are fixedly arranged on the bottom plate; the drying box is characterized in that a heat exchange mechanism is arranged in the water tank, the heat exchange mechanism comprises a waste gas pipe penetrating through the water tank and a stirring piece arranged in the water tank, a cavity is arranged in the drying box, a suspension mechanism is arranged in the drying box, and the cavity is communicated with the waste gas pipe through a gas passing pipe.

Further, the stirring piece includes the stirring pivot that passes water tank bottom tank wall, stirring pivot upper end fixedly connected with is in the screw blade of water tank, stirring pivot upper end fixedly connected with is in the outer second motor of water tank.

Furthermore, a dynamic seal is arranged between the stirring rotating shaft and the wall of the water tank, and a static seal is arranged between the shell of the second motor and the wall of the water tank.

Furthermore, a water inlet is formed in the top of the water tank, and a water outlet is formed in the lower portion of the water tank.

Further, hang the mechanism and include the montant of swing joint at stoving incasement portion top, fixed connection is at the carousel of montant bottom, fixes the first motor at the stoving roof portion.

Further, the first motor is connected with the vertical rod through a transmission pair for transmission.

Further, the lower surface of the rotary table is fixedly connected with a hanging ring.

Furthermore, a plurality of air guide branch pipes are arranged inside the drying box, two ends of each air guide branch pipe are communicated with the cavities on the left side and the right side of the drying box, and exhaust pipes are arranged on the side edges of the drying box.

Further, a power switch is arranged on the outer surface of the water tank, the drying box is provided with a drying box door, and a handle is arranged on the drying box door.

Further, the water tank is fixedly connected to the bottom plate through a support column, and the drying box is fixedly connected to the bottom plate through a support upright post.

The utility model has the beneficial effects that:

the heat exchange mechanism in the water tank heats water by using high-temperature steelmaking waste gas, and provides the heated water to the heating system, so that the heating problem of working and living of staff is solved, and the originally required heating cost is saved; the steelmaking waste gas is heated in the cavity of the drying box, the staff puts wet clothes into the drying box, the high-temperature inside of the drying box dries the clothes, on one hand, the staff is facilitated, and on the other hand, a part of heat of the steelmaking waste gas is consumed.

Drawings

The utility model is further illustrated by the figures and the detailed description.

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic diagram of the external structure of the present invention.

In the figure: 1-water tank, 2-drying box, 3-bottom plate, 101-water inlet, 102-waste gas pipe, 103-water outlet, 104-propeller blade, 105-stirring rotating shaft, 106-second motor, 107-second supporting column, 108-power switch, 201-first supporting column, 202-outer box wall, 203-cavity, 204-inner box wall, 205-exhaust pipe, 206-first motor, 207-gear pair, 208-vertical rod, 209-air outlet, 210-air passing pipe, 211-rotating disc, 212-hanging ring, 213-air guide branch pipe, 214-drying box door, 215-handle.

Detailed Description

As shown in fig. 1 and 2, the steel-making waste gas waste heat recycling device comprises a bottom plate 3 fixed on the ground and used as a mounting surface, a hot water tank 1 for a heating system, and a drying box 2 used for drying clothes by staff; the water tank 1 and the drying box 2 are both fixedly arranged on the bottom plate 1, the water tank 1 and the drying box 2 are both provided with waste gas passages for heat exchange, and the water tank 1 is communicated with the waste passages of the drying box 2.

The water tank 1 is fixed on the bottom plate 1 through a second support column 107, and comprises a waste gas pipe 102 which is spirally arranged in the water tank 1 and used for heat exchange, a water inlet 101 which is arranged above the water tank 1, a water outlet 103 which is arranged at the lower part of the water tank 1, and a stirring rotating shaft 105 which is arranged at the bottom of the water tank 1 and penetrates through the tank body, wherein an air inlet pipe 102 and a transition pipe 109 are reserved at the upper part of the waste gas coil pipe 102 which penetrates through the water tank 1.

Stirring pivot 105 is connected with propeller blade 104 in the box, and the output shaft fixed connection through shaft coupling and second motor 106 is passed through to the box outside, do rotatory movive seal between stirring pivot 105 and the box to water in the water tank 1 receives the action of gravity to leak out to the water tank 1 outside from the clearance between stirring pivot 105 and the shaft hole, then be fixed static seal between second motor 106 casing up end and the water tank diapire surface, can further prevent that water in the water tank 1 from flowing out and drenching bad second motor from the clearance between stirring pivot 105 and the shaft hole.

The water inlet 101 of the water tank 1 is connected with one end of the water inlet pipe, the water inlet pipe is provided with a first valve, the water outlet 103 of the water tank 1 is connected with one end of the water outlet pipe, the water outlet pipe is provided with a second valve, and the front surface of the water tank 1 is provided with a power switch 108.

Drying box 2 is fixed on bottom plate 1 through first support column 201, includes to rotate through the bearing frame and installs the montant 208 on drying box 2 inside top, fixed connection be in the carousel 211 of montant 208's bottom, there is first motor 206 drying box 2's top through bolt fixed mounting, be provided with gear pair 207 between first motor 206's output shaft and the montant 208 and carry out the transmission.

The lower end of the rotating disc 211 is provided with a plurality of hanging rings 211 for hanging wet clothes.

The box of stoving case 2 divide into interior tank wall 204, outer tank wall 202 and the cavity 203 of pressing from both sides between the tank wall, and stoving case 2 upper portion one side is provided with air pipe 210, and the opposite side sets up blast pipe 205, air pipe 210 and blast pipe 205 all communicate with cavity 203, stoving case 2 inside is provided with a plurality of air guide branch pipe 213, air guide branch pipe 213's both ends respectively fixed connection in stoving incasement wall both sides and with cavity 203 intercommunication, stoving case 2 upper end is provided with the gas outlet 209 of the interior vapor of discharge stoving case 2.

The air passing pipe 210 and the transition pipe 109 are communicated and fixed through a flange plate, waste gas is firstly introduced into the water tank 1 to heat water in the water tank 1, and then introduced into the drying box 2 to dry clothes cleaned by staff.

The front surface of the drying box 2 is provided with a drying box door 214, one side of the drying box door 214 is hinged with the front surface of the drying box 2 through a hinge, and the front surface of the drying box door 214 is fixedly provided with a handle 215.

The first motor 206 and the second motor 106 are electrically connected to the power switch 108 through wires, and the power switch 108 is electrically connected to an external power source through wires.

When the utility model is used, firstly, the first valve is opened, so that cold water enters the water tank 1 through the water inlet 101, high-temperature waste gas which is generated in the steel-making process and is subjected to environmental protection treatment is sent into the waste gas pipe 102, the spiral waste gas pipe 102 prolongs the flow path length and the flow time of the high-temperature waste gas in the water tank 1, and the contact area between the waste gas pipe 102 and water is increased, thereby improving the water heating efficiency, realizing the effective utilization of heat in the waste gas, saving energy and protecting environment, using the rotation of the second motor 106 to drive the propeller blades 104 on the stirring rotating shaft 105 to rotate to stir water in the water tank 1, when the propeller blades 104 are driven to rotate by the stirring rotating shaft 105 through the second motor 106, the water body can be driven to flow along the vertical direction, so that the water body forms closed circulating water flow in the water tank 1, and being more beneficial to more uniformly heating circulating water flow by the steel-making waste gas, the water in the water tank 1 is uniformly heated, thereby further improving the heat storage efficiency of the water.

The water heated by the high-temperature waste gas finally flows into heating pipe networks in living areas and office areas of the steel plant through the water outlet 103 under the condition that the second valve is opened so as to heat the living areas and the office buildings.

Waste gas in the exhaust pipe 102 still has remaining considerable heat energy after feedwater release some heat, get into the cavity 203 of stoving case 2 through transition pipe 109 and gas passing pipe 210, thereby realize the heating and drying to the clothing or other articles for daily use of hanging in the stoving case 2, stoving case 2 sets up at steel mill living area, the steel mill worker of being convenient for will wash still hydrous clothing etc. and hang in the stoving incasement, set up link 212 and be used for making things convenient for operating personnel to hang the product in the carousel bottom, utilize first motor 206 drive carousel 211 to rotate, further guarantee that the clothing that hangs in carousel 211 bottom is heated evenly, thereby the efficiency of drying has been improved.

The heating area in the drying box 2 is increased through the air guide branch pipe 213 communicated with the cavity 203, waste gas can conveniently flow through the air guide branch pipe 213 from the cavity 203, the uniform distribution of heat in the drying box 2 is further ensured, the drying efficiency and the drying effect of articles for daily use such as clothes in the drying box 2 are further improved, air in the drying box 2 is discharged through the air outlet 209, moisture generated in the drying process is discharged through the air outlet 209, and after the waste gas in the cavity 203 is discharged through the exhaust pipe 205, the waste gas is discharged into the atmosphere after being washed and cooled to about 42 ℃ through the existing wet dedusting washing and purifying process and the Venturi washing process, so as to meet the emission regulation of the steelmaking waste gas environmental protection treatment reaching the standard.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "end", "side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Also, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and thus, for example, "connected" may be fixedly, detachably, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is to be understood that the above description is only one embodiment of the utility model, and not all embodiments. Other modifications and equivalents of the embodiments of the utility model will be apparent to those skilled in the art based on the examples and embodiments of the utility model, and are intended to be included within the scope of the claims of the present invention without departing from the spirit and scope of the embodiments.

Claims

1. The utility model provides a steelmaking waste gas waste heat recovery utilizes device which characterized in that: comprises a bottom plate (3), a water tank (1) and a drying box (2) which are fixedly arranged on the bottom plate (3); the drying device is characterized in that a heat exchange mechanism is arranged in the water tank (2), the heat exchange mechanism comprises an exhaust gas pipe (102) penetrating through the water tank (1) and a stirring piece arranged in the water tank (1), a cavity (203) is arranged on a box body of the drying box (2), a suspension mechanism is arranged in the drying box (2), and the cavity (203) is communicated with the exhaust gas pipe (102) through an air passing pipe (210).

2. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 1, wherein: the stirring piece is including stirring pivot (105) that passes water tank (1) bottom tank wall, stirring pivot (105) upper end fixedly connected with is in propeller blade (104) in water tank (1), stirring pivot (105) lower extreme fixed connection has second motor (106) that is in outside water tank (1).

3. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 2, wherein: and a dynamic seal is formed between the stirring rotating shaft (105) and the wall of the water tank (1), and a static seal is formed between the shell of the second motor (106) and the wall of the water tank (1).

4. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 3, wherein: the top of the water tank (1) is provided with a water inlet (101), and the lower part of the water tank is provided with a water outlet (103).

5. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 1, wherein: the suspension mechanism comprises a vertical rod (107) movably connected to the top end inside the drying box (2), a rotary disc (211) fixedly connected to the bottom of the vertical rod (107), and a first motor (206) fixed to the top of the drying box (2).

6. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 5, wherein: the first motor (206) is connected with the vertical rod (107) through a transmission pair (207) for transmission.

7. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 5, wherein: the lower surface of the rotary disc (211) is fixedly connected with a hanging ring (212).

8. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 5, wherein: the drying box is characterized in that a plurality of air guide branch pipes (213) are arranged inside the drying box (2), two ends of each air guide branch pipe (213) are communicated with cavities (203) on the left side and the right side of the drying box (2), and exhaust pipes (205) are arranged on the side edges of the drying box (2).

9. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 1, wherein: the outer surface of the water tank (1) is provided with a power switch (108), the drying box (2) is provided with a drying box door (214), and a handle (215) is arranged on the drying box door (214).

10. The steelmaking waste gas waste heat recovery and utilization device as claimed in claim 1, wherein: the water tank (1) is fixedly connected to the bottom plate (3) through a second supporting column (107), and the drying box (2) is fixedly connected to the bottom plate (3) through a first supporting column (201).